Wireless communication system, apparatus, and method to reduce interference signals superimposed on transmission signals

Abstract

A reception apparatus includes: an interference estimation unit configured to estimate a frequency band of an interference signal in a reception signal on which the interference signal having a narrower frequency band than that of a transmission signal transmitted by a transmission apparatus is superimposed; a feedback unit configured to feed back the frequency band of the interference signal estimated by the interference estimation unit to the transmission apparatus; and a band synthesis unit configured to synthesize a plurality of sub-spectra in a frequency band corresponding to a plurality of sub-spectra decomposed by the transmission apparatus, and a transmission apparatus includes: a band division control unit configured to perform control for determining a band in which a transmission signal is divided based on the frequency band of the interference signal fed back from the reception apparatus; and a band division unit configured to band-divide the transmission signal into a plurality of sub-spectra so that the interference signal and the sub-spectra is partially superimposed, based on the band determined by the band division control unit.